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Finding the Fourth Proportional to 10,997.52, 15,179.28 and 6,803.28

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Solution

The fourth proportional to 10,997.52, 15,179.28 and 6,803.28 is: 9,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.52 : 15,179.28 = 6,803.28 : x
  2. Step 2: Convert to fraction form
    10,997.52/15,179.28 = 6,803.28/x
  3. Step 3: Cross multiply
    10,997.52x = 15,179.28 × 6,803.28
  4. Step 4: Simplify right side
    10,997.52x = 103,268,892.04
  5. Step 5: Solve for x
    x = 103,268,892.04/10,997.52
  6. Step 6: Final answer
    x = 9,390.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.